import js2py
import requests
import re

def sign(word):
    session = requests.Session()
    headers = {
        "User-Agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.139 Safari/537.36"}
    session.headers = headers
    response = session.get("http://fanyi.baidu.com/")
    gtk = re.findall(";window.gtk = ('.*?');", response.content.decode())[0]
    word = word

    context = js2py.EvalJs()
    js = r'''
    function a(r) {
          if (Array.isArray(r)) {
              for (var o = 0, t = Array(r.length); o < r.length; o++)
                 t[o] = r[o];
              return t
         }
          return Array.from(r)
     }
      function n(r, o) {
         for (var t = 0; t < o.length - 2; t += 3) {
               var a = o.charAt(t + 2);
              a = a >= "a" ? a.charCodeAt(0) - 87 : Number(a),
                 a = "+" === o.charAt(t + 1) ? r >>> a : r << a,
                   r = "+" === o.charAt(t) ? r + a & 4294967295 : r ^ a
           }
           return r
       }
      function e(r) {
         var o = r.match(/[\uD800-\uDBFF][\uDC00-\uDFFF]/g);
         if (null === o) {
                var t = r.length;
                t > 30 && (r = "" + r.substr(0, 10) + r.substr(Math.floor(t / 2) - 5, 10) + r.substr(-10, 10))
            } else {
              for (var e = r.split(/[\uD800-\uDBFF][\uDC00-\uDFFF]/), C = 0, h = e.length, f = []; h > C; C++)
                   "" !== e[C] && f.push.apply(f, a(e[C].split(""))),
                   C !== h - 1 && f.push(o[C]);
                var g = f.length;
              g > 30 && (r = f.slice(0, 10).join("") + f.slice(Math.floor(g / 2) - 5, Math.floor(g / 2) + 5).join("") + f.slice(-10).join(""))
            }
           var u = void 0
                , l = "" + String.fromCharCode(103) + String.fromCharCode(116) + String.fromCharCode(107);
          u = 'null !== i ? i : (i = window[l] || "") || ""';
          for (var d = u.split("."), m = Number(d[0]) || 0, s = Number(d[1]) || 0, S = [], c = 0, v = 0; v < r.length; v++) {
             var A = r.charCodeAt(v);
             128 > A ? S[c++] = A : (2048 > A ? S[c++] = A >> 6 | 192 : (55296 === (64512 & A) && v + 1 < r.length && 56320 === (64512 & r.charCodeAt(v + 1)) ? (A = 65536 + ((1023 & A) << 10) + (1023 & r.charCodeAt(++v)),
                    S[c++] = A >> 18 | 240,
                   S[c++] = A >> 12 & 63 | 128) : S[c++] = A >> 12 | 224,
                  S[c++] = A >> 6 & 63 | 128),
                 S[c++] = 63 & A | 128)
         }
          for (var p = m, F = "" + String.fromCharCode(43) + String.fromCharCode(45) + String.fromCharCode(97) + ("" + String.fromCharCode(94) + String.fromCharCode(43) + String.fromCharCode(54)), D = "" + String.fromCharCode(43) + String.fromCharCode(45) + String.fromCharCode(51) + ("" + String.fromCharCode(94) + String.fromCharCode(43) + String.fromCharCode(98)) + ("" + String.fromCharCode(43) + String.fromCharCode(45) + String.fromCharCode(102)), b = 0; b < S.length; b++)
               p += S[b],
                   p = n(p, F);
          return p = n(p, D),
               p ^= s,
          0 > p && (p = (2147483647 & p) + 2147483648),
             p %= 1e6,
           p.toString() + "." + (p ^ m)
       }
    '''
    js = js.replace('\'null !== i ? i : (i = window[l] || "") || ""\'', gtk)
    # 执行js
    context.execute(js)
    # 调用函数得到sign
    sign = context.e(word)
    return sign
